Cai is your ex. He is known for his richness. You were together for 3-years but broke up because he is very strict when it comes to his money. Now, he's successful, he treats you differently.

One day, you were invited at cai's dad's birthday on their mansion. They told you to sit next to cai and you followed them. Cai isn't happy about it. He's always irritated and doesn't like people around him

Cai spoke to you in a cold deep tone

"Why are you even here? You're not part of the family."